Harrow.



s. 0. JOY.

HARROW. APPLIOATIOH FILED DBO. 3, 1913.

1, 1 1 8,288, Patented Nov. 24, 1914,

CIJ a 21 1 37 m: u 30 --25 14. 23 30 27 27 c 2 17 1 22 m a 28 4' I Z6 3228 7 0;: Z Z3 4 A THE NORRIS PETERS 60., PHOTOJJTHOH WASHINGRJN D CUNITED STATES PATENT UFFIQE.

SAMUEL O. JOY, OF TIVERTON, RHODE ISLAND.

HARROW.

Application filed December 3, 1913.

This invention relates to harrows and has for an object to provide aharrow having a spike roller which will be simultaneouslyrotated andforced into the ground upon advance of the harrow whereby the groundwill be thoroughly broken up.

A further object of the invention is to provide a novel gage frame androller carrying frame, such frames being so secured that the weight ofboth to a great extent is disposed on the roller so that the latter isfirmly forced against the ground.

A further object is to provide a harrow which will be formed of a fewstrong and durable parts that may be manufactured at a minimum cost andwill not easily get out of order.

W'ith the above objects in View the invention consists of certain noveldetails of construction and combination of parts hereinafter fullydescribed and claimed, it being understood that various modificationsmay be made in the minor details of construction within the scope of theappended claims.

In the accompanying drawing illustrating this invention :Figure 1 is aside elevation of the harrow with the near wheel removed. Fig. 2 is aplan view of the harrow. Fig. 3 is a rear elevation. Fig. t is alongitudinal sectional view taken on the line 4'L Fig. 2.

Referring now to the drawing, in which like characters of referencedesignate similar parts, 10 designates an axle, the same having groundwheels 11 fixed to their ends, which ground wheels carry respectivesprockets 12. A pair of downwardly inclined frame bars 13 are pivoted atthe forward ends as shown at 14; to the axle, and carry at their lowerends a spiked roller 15, the ends of the shaft of the roller beingequipped with small sprockets 16 over which and the ground wheelsprockets 12, sprocket chains 17 are trained. t is thus evident thatupon advance of the harrow the roller Specification of Letters Patent.

Patented Nov. 24, 1914.

Serial no. 804,441.

will be rotated by these chain drives from the ground wheels. A toothedcleaning bar 18 is arranged above the roller and is secured to theroller frame bars 13 by braces 19, the teeth of this bar cleaning theroller teeth during rotation of the roller.

Pivota'lly connected at their forward ends as shown at 20 to the rollerframe bars 13 are substantially horizontally disposed frame bars 21which are connected at their outer ends by a cross bar 22 and carry attheir outer ends depending hangers 23 which are equipped with gagewheels 24 that ride on the ground in rear of the spiked roller. A crossbar 25 connects the frame bars 21 in front of the spiked roller, thiscross bar loosely supporting one end of a longitudinal bar 26 which issecured at the opposite end to the axle, this longitudinal barsupporting the operators seat 27. A cross bar 28 connects the toothedroller frame bars 13 and to the center of the cross bar is pivotallysecured an upright link 29 which in turn is secured to an angular handlelever 30 which is pivoted as shown at 31 on a notched segment plate 32carried by the longitudinal bar 26, the lever being equipped with alatch operated pawl which operatively engages the notched segment plate.

It is now clear that the frame bars 21 are pivoted upon the harrowroller bars 13 which latter in turn are pivoted on the axle. Therefore,the weight of the frame bars 21 as well as the operators weight is to agreat extent borne by the harrow roller bars 13 whereby the harrowroller is pressed down firmly into the ground so that during itsrotation it will thoroughly break up the ground. The operating lever maybe pulled forwardly by the operator to raise the harrow roller 15 fromthe ground when desired, the frame bars 21 serving as a fulcrum for thebars 13 during such movement.

From the above description it will be seen that I have provided anextremely simple and strong harrow that will effectively operate tobreak up the soil, and that may be drawn by an engine or by draftanimals without sacrificing any of its advantages.

Vhat is claimed is:

1. A harrow including an axle having fixed wheels, bars pivoted to theaxle and extending backwardly therefrom, a toothed roller carried bysaid bars, means operatively connecting the roller for rotation with thewheels of said axle, frame bars, pivoted at their forward ends to thefirst named bars and extending rearwardly beyond the first named. bars,ground engaging supports on said frame bars, and a lever having its support resting on said frame bars and operatively connected with the saidfirst named bars for raising and lowering the rollers.

2. A harrow including an axle having fixed wheels, bars pivoted on saidaxle and extending forwardly and downwardly there from, a toothed groundpenetrating roller carried by said bars means operatively connectingsaid roller for rotation with the wheels of said axle frame barspivoted. at their rear ends to the first named bars and extendingsubstantially horizontally and rearwardly beyond the first named bars,ground engaging wheels on the free ends of said frame bars, and a leverhaving its support resting on said frame bars and operatively connectedwith the first named bars for raising and lowering said rollers, theweight of said frame bars as well as the weight of the first named barsbeing to a great extent borne by said roller whereby said roller isforced into the ground.

In testimony whereof, I atiix my signature, in the presence of twowitnesses.

SAMUEILI O. JOY.

Witnesses:

I. D. HUMPHREY, IRA W. HUMPHREY.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents,

Washington, I). G.

